Before searching for dangerous cracks, know that that never expires. This is the only safe "free install" of FL Studio.
The Fruity Edition costs $99 (often on sale for $79). It has limitations (no audio clips in the playlist, no recording), but it is a real, permanent license. You will get a real .reg file that you can install in 2 seconds. fl studio license file free install
Download the official, clean installation file from the downloads page. Before searching for dangerous cracks, know that that